Thursday, May 13, 2010

Measures of Central Tendency

Tests out of 10

8, 9. 4, 5, 9 set of data
4, 5, 8, 9, 9 re order from least to greatest

Dude says 8 is the best representative of the test scores because 8 is in the middle
Chick says 9 is the best rep because it shows up the most

Measure of Central Tendency - is the value that represents the centre of a set of data. You can find the mean, median, or mode

Median - the middle number in a set of data after the data has been arranged or ordered

eg. 2, 5, 6, 8, 9 median is 6
eg. 1, 3, 6, 8, 9, 10 median is 7
\ \
add together then divide by 2

Mode - the most frequently occuring number in a set of data

eg. 3, 5, 7, 7, 9 mode is 7
eg. 2, 2, 4, 6, 6, 8, 11 mode is 2 and 6
eg. 1, 2, 3, 4 mode is none
eg. 1, 2, 2, 2, 3, 3, 4, 4 mode is 2

Montreal scored the following goals in their last 10 games
5, 4, 3, 2, 1, 5, 3, 3, 7, 3

Find Mode and Median

Find the Mode and Median of each set of values

a) 4, 2, 6, 9, 4
b) 11, 5, 8, 11, 10
c) 4, 5, 8, 5, 5, 8, 5, 7
d) 14, 6, 14, 8, 10, 6, 10

Find Mode and Median:


H.W.

Find Mode and Median:


If you need help click this link

If you still need help watch this video:

http://www.youtube.com/watch?v=81zcjULlh58

Mr. Isfeld's best friend is your guest teacher tomorrow. Make sure you are the best class in the world !

17 comments:

  1. Good job Joshua! The post you made was organized. Colourful pictures and thank you for putting what's for homework and also for the link.

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  3. Great Job Joshua! I like how you used different colors in this scribe. Good Job on putting a link and the video, but the video could have been showed. Everything was organized, Nice Job!

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  4. Good Job Joshua! i liked how you used pictures and how you changed the font colors. thanks for reminding us about our homework. i think the video was pretty interesting.. it also made things more easier to understand. the link helped, but wasn't that interesting. good job josh!

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  5. Good Job Joshua. Your scribe is neat. You did what we suggested on your previews scribe, you put a video and you spaced things out. You used lots of colors. The link and video helped a lot.. Good Job.

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  6. Good job Josh, your pictures were great and neat and so was your scribe. Great video and link, even tho the video wasn't put on the scribe as the box thingy, but atleast you found one (: Good job Joshie.

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  7. Good job joshua. the pictures are nice. i like how you put a video and a link. good job

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  8. Awesome post Josh! I like the colors that you used for the images and the keywords. I also like how you spaced everything out to make it look neat and easy to read. Nice link, but next time put the video directly on your post. GREAT JOB! =D

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  9. Good post Joshua. Everything was very neat and spaced out very well. The pictures are easy to read, and the colours make it easy to spot.

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  10. Good Job Joshua!
    I liked how you used pictures and how you changed the font colors. Thanks for reminding us about our homework. I think the video was pretty interesting. It also made things more easier to understand. The link helped, but wasn't that interesting. Good job Josh!

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  11. Great job Joshua! The link and the video was really helpful.The pictures were good help too. Keep up the good work!

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  12. Good job Joshua!Your pictures were neat and wasy to understand!.Next time try and find a link, and a video. Overall...Great job Josh.

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  13. Good job Joshua!Your pictures were neat and wasy to understand.Next time try and find a link, and a video.

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  14. Great Job Joshua!!! everything is well organized and neat.

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  15. Nicely done Joshua! Everything is organized and neat and the picture were great too. I like how you put up a link, picture, and a video because that made this alot more helpful. I think you should've posted the video on instead of the link to the video and that it would be better with more colour because this looks a bit dull. This was still a great blog though so, well done!

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  16. Great Job Joshua! I like how you used different colors in this scribe. Good Job on putting a link and the video, but the video could have been showed. Everything was organized, Nice Job!

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  17. Good job i like the colours.good job on the video and link.

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